19
E
Setup
2
How can the back focus be controlled and adjusted?
1. Adjusting back focus in preparation / test room:
Check if the actually measured distance on the lens leads to a correct visual sharpness.
Beispiel:
Place the test chart precise 3 m (or another, exact calibrated distance at the lens)
distant from the image plane and adjust the measured distance at the lens. Check the result
on a high-resolution monitor.
1
2
2.1
2.2
2.3
2.4
Instruction
Mount a fi lm lens to the Image Converter.
Place a focus chart at a reasonable distance
and set the focus of the fi lm lens at that
distance.
Turn the Image Converter ON.
Open the adjustable ND FILTER to Position 0.
Close the iris of the fi lm lens to around T4.
Unscrew the lever, marked
8
in the photo.
Turn the ring to adjust for best sharpness.
Tighten lever
8
.
The PRO35 Image Converter is precisely ad-
justed for the camera.
Explanatory Notes
Select a mid range fi lm lens; around
50 mm.
Use a good quality monitor to evalua-
te the picture.
